Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a pluralidade de assentos democratas com 29% de democratas?
 ###Tabelas: CREATE TABLE opinion_polling (opinion_polling_id AUTO_INCREMENT PRIMARY KEY, Date Released VARCHAR, Polling institute VARCHAR, Socialist VARCHAR, Social Democratic VARCHAR, Peoples Party VARCHAR, Green-Communist VARCHAR, Left Bloc VARCHAR, Lead VARCHAR) CREATE TABLE 1066_to_1135 (1066_to_1135_id AUTO_INCREMENT PRIMARY KEY, Heir VARCHAR, Status VARCHAR, Relationship to Monarch VARCHAR, Became heir VARCHAR, Reason VARCHAR, Ceased to be heir VARCHAR, Monarch VARCHAR) CREATE TABLE 2008_draft_picks (2008_draft_picks_id AUTO_INCREMENT PRIMARY KEY, Round INT, Overall INT, Player VARCHAR, Position VARCHAR, Nationality VARCHAR, Club team VARCHAR) CREATE TABLE overview (overview_id AUTO_INCREMENT PRIMARY KEY, State ranked in partisan order VARCHAR, Percentage Democrats VARCHAR, Percentage Republicans VARCHAR, Democratic/ Republican VARCHAR, Democratic seat plurality VARCHAR) CREATE TABLE downstream_pittsburgh_to_olmsted (downstream_pittsburgh_to_olmsted_id AUTO_INCREMENT PRIMARY KEY, Locks & Dam VARCHAR, Location [L ] VARCHAR, River Mile INT, Lock Side VARCHAR, Lock Lift/Drop (in feet) VARCHAR, Pool Length (miles) VARCHAR)  
SELECT Democratic seat plurality FROM overview WHERE Percentage Democrats = 29%